KR20200082787A - Stereoscopic Display Apparatus having a transparent region - Google Patents

Abstract

The present invention relates to a stereoscopic image display device in which each unit pixel of a display panel includes first transmission areas. A barrier panel positioned on the display panel may include second transmission areas overlapping the first transmission areas of each unit pixel. Accordingly, according to the technical idea of the present invention, the transparency may be improved without deteriorating the quality of the stereoscopic image in the stereoscopic image display device.

Description

Stereoscopic display device including a transmissive area {Stereoscopic Display Apparatus having a transparent region}

The present invention relates to a stereoscopic image display device in which each unit pixel of a display panel includes a transmission area.

In general, a display device includes a display panel that implements an image. For example, the display device may include a liquid crystal panel including liquid crystal and/or an OLED panel including a light emitting element.

The display device may separate the image implemented by the display panel into a barrier panel. For example, a stereoscopic image display device that provides a stereoscopic image to a user may provide different images to the left and right eyes of the user by a barrier panel positioned on the display panel.

The barrier panel may include light transmitting areas and light blocking areas for separation of images. The light-transmitting regions and the light-blocking regions may be formed by voltages supplied to channel electrodes positioned in parallel. For example, the barrier panel may include channel electrodes crossing an active region through which light emitted from the display panel passes.

However, if each unit pixel of the display panel includes a transmissive region, transparency may be deteriorated in the stereoscopic image display device by light blocking regions of the barrier panel formed on the transmissive region of the display panel.

The problem to be solved by the present invention is to provide a stereoscopic image display device capable of minimizing quality degradation of a stereoscopic image provided to a user and improving transparency.

Another problem to be solved by the present invention is to provide a stereoscopic image display device capable of preventing a decrease in luminance of a transmission region by a barrier panel.

The problems to be solved by the present invention are not limited to the aforementioned problems. The tasks not mentioned herein will be clearly understood by those skilled in the art from the following description.

The stereoscopic image display device according to the technical idea of the present invention for achieving the above-mentioned problem includes a display panel. The display panel includes a plurality of unit pixels. Each unit pixel includes a display area and a first transmission area. A barrier panel is positioned on the display panel. The barrier panel includes barrier regions and second transmission regions. The barrier regions overlap with the display region of each unit pixel. The second transmission regions overlap with the first transmission region of each unit pixel.

Each second transmission region may have the same size as the first transmission region of each unit pixel. Each barrier region may have the same size as the display region of each unit pixel.

The barrier panel may include channel electrodes stacked in order between the lower barrier substrate and the upper barrier substrate, the lower insulating layer, the lower common electrode layer, the barrier liquid crystal layer, and the upper common electrode layer. The lower common electrode layer may overlap the second transmission regions.

The upper common electrode layer may overlap the barrier regions and the second transmission regions.

The display area and the first transmission area of each unit pixel may be positioned side by side in the first direction. Each channel electrode may cross barrier regions and second transmission regions positioned in a first direction.

Each lower common electrode layer may extend in a second direction perpendicular to the first direction. The second transmission regions may overlap the intersection region of the lower common electrode layer and the channel electrodes.

The horizontal length of each lower common electrode layer in the second direction may be the same as the horizontal length of each second transmission region in the second direction.

The barrier panel may further include a common voltage supply wiring extending along the edge of the lower barrier panel. Each lower common electrode layer may be connected to the common voltage supply wiring outside the active region in which the barrier regions and the second transmission regions are located.

The display panel may include light emitting elements positioned in a display area of each unit pixel.

The stereoscopic image display device according to the technical idea of the present invention may include second transmission regions in which the barrier panel overlaps the first transmission regions of the display panel. Accordingly, in the stereoscopic image display device according to the technical idea of the present invention, light passing through the first transmission regions of the display panel may not be blocked by the barrier panel. Therefore, transparency may be improved in a stereoscopic image display device according to the technical idea of the present invention.

1 is a schematic view of a stereoscopic image display device according to an embodiment of the present invention.
2 and 3 are diagrams illustrating a display panel and a barrier panel of a stereoscopic image display device according to an exemplary embodiment of the present invention.
4 is a view showing a cross-section taken along line I-I' of FIG. 3.
5 is a diagram illustrating signal wirings positioned on a lower barrier substrate of a barrier panel in a stereoscopic image display device according to an embodiment of the present invention.
FIG. 6 is an enlarged view of region R of FIG. 5.
7 is a cross-sectional view taken along line II-II' and III-III' of FIG. 5.
8 to 10 are views showing a stereoscopic image display device according to another embodiment of the present invention.

The details of the above object and the technical configuration of the present invention and the effect of the effect thereof will be more clearly understood by the following detailed description with reference to the drawings showing embodiments of the present invention. Here, since the embodiments of the present invention are provided to enable the technical spirit of the present invention to be sufficiently transmitted to those skilled in the art, the present invention may be embodied in other forms so as not to be limited to the embodiments described below.

In addition, parts indicated by the same reference numerals throughout the specification mean the same components, and in the drawings, the length and thickness of a layer or region may be exaggerated for convenience. In addition, when the first component is described as being "on" the second component, the first component and the first component are not only located on the upper side in direct contact with the second component, but also the first component and the Also included is the case where the third component is positioned between the second components.

Here, the terms first, second, etc. are used to describe various components, and are used for the purpose of distinguishing one component from other components. However, the first component and the second component may be arbitrarily named according to the convenience of those skilled in the art without departing from the technical spirit of the present invention.

Terms used in the specification of the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. For example, a component expressed as a singular includes a plurality of components unless the context clearly refers to the singular. Also, in the specification of the present invention, terms such as “comprises” or “haves” are intended to designate the existence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, or It should be understood that it does not preclude the existence or addition possibility of other features or numbers, steps, actions, components, parts or combinations thereof.

In addition, unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms, such as those defined in the commonly used dictionary, should be interpreted as having meanings consistent with meanings in the context of the related art, and unless they are explicitly defined in the specification of the present invention, in an ideal or excessively formal meaning. Is not interpreted.

(Example)

1 is a schematic view of a stereoscopic image display device according to an embodiment of the present invention. 2 and 3 are diagrams illustrating a display panel and a barrier panel of a stereoscopic image display device according to an exemplary embodiment of the present invention. 4 is a view showing a cross-section taken along line I-I' of FIG. 3.

1 to 4, a stereoscopic image display device according to an exemplary embodiment of the present invention may include a display panel 100, a barrier panel 200, a display driver 300 and a barrier driver 600.

The display panel 100 may generate an image to be provided to a user. For example, the display panel 100 may include unit pixels PA that implement a specific color. When an image is not implemented, the display panel 100 may function as transparent glass. For example, each unit pixel PA of the display panel 100 may include a light emitting area EA and a first transmission area T1. The emission area EA and the first transmission area T1 of each unit pixel PA may be positioned side by side. For example, the display panel 100 may include unit pixels PA in which the emission area EA and the first transmission area T1 are positioned side by side in the first direction Y.

The emission area EA of each unit pixel PA may emit light. For example, the light emitting device 140 may be positioned in the light emitting area EA of each unit pixel PA. The light emitting device 140 may be positioned between the lower display substrate 110 and the upper display substrate 170. For example, the display panel 100 includes light emitting elements 140 overlapping the light emitting area EA of each unit pixel PA between the lower display substrate 110 and the upper display substrate 170. It can contain.

The light emitting device 140 includes a lower light emitting electrode 141, a light emitting layer 142, and an upper light emitting electrode 143 stacked in order on the surface of the lower display substrate 110 facing the upper display substrate 170. It can contain. The emission layer 142 may generate light having a luminance corresponding to a voltage difference between the lower emission electrode 141 and the upper emission electrode 143. The light emitting layer 142 may include an organic light emitting material or an inorganic light emitting material. For example, the display panel 100 of the display device according to the exemplary embodiment of the present invention may be an OLED panel including a light emitting layer 142 of an organic material.

A thin film transistor 120 and an overcoat layer 130 may be positioned between the lower display substrate 110 and the light emitting device 140. The thin film transistor 120 may supply a driving current corresponding to a data signal to the light emitting device 140 according to a gate signal. The overcoat layer 130 may remove a step difference by the thin film transistor 120. For example, the thin film transistor 120 may be completely covered by the overcoat layer 130. The light emitting device 140 may be positioned on the overcoat layer 130. For example, the overcoat layer 130 may include a contact hole exposing a portion of the thin film transistor 120.

Each light emitting device 140 may be driven independently of the adjacent light emitting devices 140. For example, the lower light emitting electrode 141 of each light emitting device 140 may be insulated from the lower light emitting electrode 141 of the adjacent light emitting device 140 by the bank insulating layer 150. The bank insulating layer 150 may cover the edges of each lower light emitting electrode 141. The light emitting layer 142 and the upper light emitting electrode 143 of each light emitting device 140 may be stacked on a portion of the lower light emitting electrode 141 exposed by the bank insulating layer 150. The emission layer 142 and the upper emission electrode 143 may extend over the bank insulating layer 150.

An encapsulation member 160 may be positioned on the light emitting device 140. The sealing member 160 may prevent damage to the light emitting device 140 due to external moisture and impact. The sealing member 160 may have a multi-layer structure. For example, the encapsulation member 160 may include a first encapsulation layer 161, a second encapsulation layer 162, and a third encapsulation layer 163 stacked on the light emitting device 140 in order. have.

The first encapsulation layer 161, the second encapsulation layer 162, and the third encapsulation layer 163 may include an insulating material. The second encapsulation layer 162 may include different materials from the first encapsulation layer 161 and the third encapsulation layer 163. For example, the first encapsulation layer 161 and the third encapsulation layer 163 may be inorganic insulating layers formed of an inorganic insulating material, and the second encapsulation layer 162 may be organic insulating layers formed of an organic insulating material. .

The display panel 100 may be driven by the display driver 300. The display driver 300 may supply various signals for realizing an image to the display panel 100. For example, the display driver 300 may include a data driver 310 and a scan driver 320.

The data driver 310 may apply a data signal to the display panel 100. The scan driver 320 may sequentially supply scan signals to the display panel 10. The data signal applied by the data driver 310 may be synchronized with the scan signal supplied by the scan driver 320.

The display driver 300 may receive a necessary signal from the timing controller 400. For example, the timing controller 400 transmits digital video data and a source timing control signal to the data driver 310, and clock signals, reset clock signals and start signals to the scan driver 320. Can deliver.

The timing control part 400 may be electrically connected to the position detection part 500. The location detecting unit 500 may detect location information of a user. For example, the position detection unit 500 may include a camera. The signal transmitted from the timing control part 400 to the display driving part 300 may be changed according to the user's position sensed by the position detection part 500.

The barrier panel 200 may be located on the display panel 100. The barrier panel 200 may provide different images to the left and right eyes of the user. For example, a stereoscopic image display device according to an embodiment of the present invention may provide a stereoscopic image to a user. The barrier panel 200 may be controlled by the barrier driver 600. The barrier driver 600 may receive a signal from the timing controller 400. For example, the barrier driver 600 may change a signal applied to the barrier panel 200 according to a user's location.

The barrier panel 200 may include barrier regions BA and second transmission regions T2. Transmissive regions and light blocking regions for separating an image implemented by the display panel 100 may be formed in the barrier regions BA according to the signal of the barrier driver 600. For example, the barrier regions BA may overlap the emission region EA of each unit pixel PA. The horizontal length Dy1 of each barrier area BA in the first direction Y may be the same as the horizontal length Dy2 of the light emitting area EA of each unit pixel PA in the first direction Y. Can. The horizontal length Dx1 of each barrier area BA in the second direction X perpendicular to the first direction Y is the light emitting area EA of each unit pixel PA in the second direction X. It may be the same as the horizontal length of (Dx2). Accordingly, in the stereoscopic image display apparatus according to an embodiment of the present invention, the quality of the stereoscopic image provided to the user through the barrier panel 200 may be maintained.

The second transmission areas T2 may overlap the first transmission area T1 of each unit pixel PA. The horizontal length Dy3 of each second transmission region T2 in the first direction Y is the horizontal length Dy4 of the first transmission region T1 of each unit pixel PA in the first direction Y ). The horizontal length Dx3 of each second transmission area T2 in the second direction X is the horizontal length Dx4 of the first transmission area T1 of each unit pixel PA in the second direction X ). Accordingly, in the stereoscopic image display device according to the exemplary embodiment of the present invention, luminance of a transmission region may be improved.

5 is a view showing signal wirings positioned on a lower barrier substrate of a barrier panel in a stereoscopic image display device according to an embodiment of the present invention. FIG. 6 is an enlarged view of region R of FIG. 5. FIG. 7 is a view showing cross-sections taken along lines I-I' and II-II' of FIG. 5.

3 and 5 to 7, the barrier panel 200 of the stereoscopic image display device according to an exemplary embodiment of the present invention includes channel electrodes stacked in order between the lower barrier substrate 210 and the upper barrier substrate 220. (CH 1 -CHn), a lower insulating layer 217, a lower common electrode layer 218, a barrier liquid crystal layer 230 and an upper common electrode layer 222.

The lower barrier substrate 210 may be positioned close to the display panel 100. The lower barrier substrate 210 may include an insulating material. The lower barrier substrate 210 may include a transparent material. For example, the lower barrier substrate 210 may include glass or plastic.

The lower barrier substrate 210 may include an active area AA and a peripheral area PA. Light emitted from each unit pixel PA of the display panel 100 may pass through the active area AA of the lower barrier substrate 210. For example, the active area AA of the lower barrier substrate 210 may overlap the unit pixels PA of the display panel 100. The peripheral area PA of the lower barrier substrate 210 may be located outside the active area AA of the lower barrier substrate 210. For example, the active area AA of the lower barrier substrate 210 may be surrounded by the peripheral area PA of the lower barrier substrate 210.

The upper barrier substrate 220 may be positioned on the lower barrier substrate 210. For example, the lower barrier substrate 210 may be positioned between the upper display substrate 170 and the upper barrier substrate 220 of the display panel 100. The upper barrier substrate 220 may be parallel to the lower barrier substrate 210.

The upper barrier substrate 220 may include an insulating material. The upper barrier substrate 220 may include a transparent material. For example, the upper barrier substrate 220 may include glass or plastic. The upper barrier substrate 220 may include the same material as the lower barrier substrate 210.

The upper barrier substrate 220 may overlap the active area AA and the peripheral area PA of the lower barrier substrate 210. For example, the active area AA of the upper barrier substrate 220 may have the same area as the active area AA of the lower barrier substrate 210.

The barrier liquid crystal layer 230 may overlap the active region AA of the lower barrier substrate 210. For example, the barrier liquid crystal layer 230 may be positioned between the active region AA of the lower barrier substrate 210 and the upper barrier substrate 220. The barrier liquid crystal layer 230 may include liquid crystal. For example, the barrier liquid crystal layer 230 may include a liquid crystal of TN mode or ECB mode.

The channel electrodes CH ₁ -CH _n may form light blocking regions and light transmitting regions according to a signal from the barrier driver 600. For example, the channel electrodes CH ₁ -CH _n may extend parallel to the first direction Y. The channel electrodes CH ₁ -CH _n may cross the active area AA of the lower barrier substrate 210 in the first direction Y. Light-blocking regions and light-transmitting regions by the channel electrodes CH1-CHn may be formed in the active region AA.

The channel electrodes CH ₁ -CH _n may include a conductive material. The channel electrodes CH ₁ -CH _n may include a transparent material. For example, the channel electrodes CH ₁ -CH _n may be transparent electrodes formed of a transparent conductive material such as ITO and IZO.

The channel electrodes CH ₁ -CH _n may have a multi-layer structure. For example, the channel electrodes CH ₁ -CH _n may include lower channel electrodes CH1 and CHn-1 and upper channel electrodes CH2 and CHn insulated by the channel insulating layer 215. . The channel insulating layer 215 may include an insulating material. For example, the channel insulating layer 215 may include silicon oxide or silicon nitride.

The channel electrodes CH ₁ -CH _n may be electrically connected to the barrier driver 600 by link wirings BL ₁ -BL _n . The link wires BL ₁ -BL _n may be located on the peripheral area PA of the lower barrier substrate 210. The link wires BL ₁ -BL _n may extend along the edge of the active area AA of the lower barrier substrate 210. The upper and lower ends of each channel electrode CH ₁ -CH _n may be connected to the same link wiring BL ₁ -BL _n . For example, each channel electrode CH ₁ -CH _n may form a closed loop with the corresponding link wiring BL ₁ -BL _n . The channel electrodes CH ₁ -CH _n may form one group for every n pieces. For example, each channel electrode (CH ₁ -CH _n ) has the same link wiring (BL ₁ -BL _n ) as the n+1th channel electrode (CH ₁ -CH _n ) from the corresponding channel electrode (CH ₁ -CH _n ). Can be connected to. Accordingly, in the display device according to the exemplary embodiment of the present invention, the peripheral area PA of the lower barrier substrate 210 may be minimized.

The link wires BL ₁ -BL _n may include a conductive material. The link wires BL ₁ -BL _n may have a higher conductivity than the channel electrodes CH ₁ -CH _n . For example, the link wires BL ₁ -BL _n may include metal. The peripheral area PA of the lower barrier substrate 210 may be a light blocking area.

A barrier buffer layer 213 may be positioned between the lower barrier substrate 210 and the channel electrodes CH ₁ -CH _n . The barrier buffer layer 213 may prevent contamination by the lower barrier substrate 210 in the process of forming the channel electrodes CH ₁ -CH _n . The barrier buffer layer 213 may include an insulating material. For example, the barrier buffer layer 213 may include silicon oxide.

The link wires BL ₁ -BL _n may be positioned closer to the lower barrier substrate 210 than the channel electrodes CH ₁ -CH _n . For example, the link wirings BL ₁ -BL _n may be positioned between the lower barrier substrate 210 and the barrier buffer layer 213. Each channel electrode CH ₁ -CH _{n is} connected to a corresponding link wiring BL ₁ -BL _{n in} a certain region of the barrier buffer layer 213 positioned in the peripheral region PA of the lower barrier substrate 210. Contact holes for electrically connecting may be located.

The common voltage supply wiring Vcom and the ground wiring GND may be positioned on the peripheral area PA of the lower barrier substrate 210. The common voltage supply wiring Vcom may transmit a common voltage. The common voltage supply wiring Vcom may be located outside the link wirings BL ₁ -BL _n . The ground wire GND may be located outside the common voltage supply wire Vcom. For example, the common voltage supply wiring Vcom and the ground wiring GND may extend along the edge of the lower barrier substrate 210.

The common voltage supply wiring Vcom and the ground wiring GND may include a conductive material. The common voltage supply wiring Vcom and the ground wiring GND may have higher conductivity than the channel electrodes CH ₁ -CH _n . The ground wire GND may include the same material as the common voltage supply wire Vcom. The common voltage supply wiring Vcom and the ground wiring GND may include the same material as the link wirings BL ₁ -BL _n . For example, the common voltage supply wiring Vcom and the ground wiring GND may be positioned between the lower barrier substrate 210 and the barrier buffer layer 213.

The upper common electrode layer 222 may be located on the surface of the upper barrier substrate 220 facing the lower barrier substrate 210. The upper common electrode layer 222 may include an area overlapping the active area AA of the lower barrier substrate 210. For example, the upper common electrode layer 222 may extend on the peripheral area PA of the lower barrier substrate 210. The size of the upper common electrode layer 222 may be larger than the size of the active area AA of the lower barrier substrate 210.

The upper common electrode layer 222 may include a conductive material. The upper common electrode layer 222 may include a transparent material. For example, the upper common electrode layer 222 may be a transparent electrode formed of a transparent conductive material such as ITO and IZO. The upper common electrode layer 222 may include the same material as the channel electrodes CH ₁ -CH _n .

The upper common electrode layer 222 may be electrically connected to the common voltage supply wiring Vcom. For example, at least one conductive member for electrically connecting the upper common electrode layer 222 and the common voltage supply wiring Vcom may be located on the peripheral area PA of the lower barrier substrate 210. have. The conductive member may include a metal such as Ag. Accordingly, in the barrier panel 200 of the stereoscopic image display device according to an exemplary embodiment of the present invention, a vertical electric field may be formed by the channel electrodes CH1-CHn and the upper common electrode layer 222. A certain region of the barrier liquid crystal layer 230 overlapping each channel electrode CH1-CHn may have transmittance according to a vertical electric field formed between the corresponding channel electrode CH1-CHn and the upper common electrode layer 222. . The vertical electric field formed between each channel electrode CH1-CHn and the upper common electrode layer 222 may be controlled by a voltage applied to the corresponding channel electrode CH1-CHn. Accordingly, in the barrier panel 200 of the stereoscopic image display device according to an exemplary embodiment of the present invention, light blocking areas and light transmitting areas in the active area AA are applied through a voltage applied to the channel electrodes CH ₁ -CH _n . Can be formed.

The lower common electrode layers 218 may extend in a second direction X perpendicular to the first direction Y. The lower common electrode layers 218 may cross the active area AA of the lower barrier substrate 210 in the second direction X. For example, each lower common electrode layer 218 may intersect the channel electrodes CH1-CHn in the active area AA. Each channel electrode CH1-CHn may intersect the lower common electrode layers 218.

The lower common electrode layers 218 may include a conductive material. The lower common electrode layers 218 may include a transparent material. For example, the lower common electrode layers 218 may be transparent electrodes formed of a transparent conductive material such as ITO and IZO. The lower common electrode layers 218 may include the same material as the channel electrodes CH ₁ -CH _n .

The lower common electrode layers 218 may be insulated from the channel electrodes CH1-CHn by the lower insulating layer 217. For example, the lower insulating layer 217 may be positioned between the channel electrodes CH1-CHn and the lower common electrode layers 218. The upper channel electrodes CH2 and CHn may be covered by the lower insulating layer 217. The lower insulating layer 217 may include an insulating material. For example, the lower insulating layer 217 may include silicon oxide or silicon nitride. The lower insulating layer 217 may include the same material as the channel insulating layer 215.

The lower common electrode layers 218 may be connected to the common voltage supply line Vcom. For example, the channel insulating layer 215 and the lower insulating layer 217 are positioned on the peripheral area PA of the lower barrier substrate 210, each lower common electrode layer 218 and the common voltage supply wiring It may include contact holes located between (Vcom). Accordingly, in the stereoscopic image display device according to the exemplary embodiment of the present invention, a vertical electric field may not be formed between the lower common electrode layers 218 and the upper common electrode layers 222. That is, in the stereoscopic image display device according to the exemplary embodiment of the present invention, a portion of the barrier liquid crystal layer 230 overlapping the lower common electrode layers 218 is not controlled by the channel electrodes CH1-CHn. Can. For example, in the barrier panel 200 of the stereoscopic image display device according to an exemplary embodiment of the present invention, the active region overlapping the lower common electrode layers 218 may have a constant transmittance.

The lower common electrode layers 218 may overlap the second transmission regions T2 of the barrier panel 200. For example, the horizontal length 218w of each lower common electrode layer 218 in the first direction Y is the same as the horizontal length Dy3 of each second transmission region T2 in the first direction Y. can do. The channel electrodes CH1-CHn and the lower common electrode layers 218 may be stacked in the second transmission regions T2 of the barrier panel 200. The barrier regions BA of the barrier panel 200 may be positioned between the lower common electrode layers 218. For example, the separation distance between the lower common electrode layers 218 in the first direction Y may be the same as the horizontal length Dy1 of each barrier region BA in the first direction Y. Only the channel electrodes CH1-CHn may be located in the barrier regions BA of the barrier panel 200.

The barrier liquid crystal layer 230 may be in a normally white mode. Accordingly, in the stereoscopic image display apparatus 200 according to the exemplary embodiment of the present invention, a light blocking region by the channel electrodes CH1-CHn may not be formed in the second transmission regions T2. In the stereoscopic image display device according to an exemplary embodiment of the present invention, light passing through the first transmissive regions T1 of the display panel 100 receives the second transmissive regions T2 of the barrier panel 200. Can pass. Therefore, in the stereoscopic image display device according to the exemplary embodiment of the present invention, a decrease in luminance of a transmission area by the barrier panel 200 may be prevented.

In addition, in the barrier panel 200 of the stereoscopic image display device according to an exemplary embodiment of the present invention, the barrier regions BA and the second transmission in which the channel electrodes CH1-CHn are positioned in the first direction Y The regions T2 may be crossed. For example, in the barrier panel 200 of the stereoscopic image display device according to an exemplary embodiment of the present invention, the second transmission areas T2 include the channel electrodes CH1-CHn and the lower common electrode layer 218. Can overlap with intersecting areas. Accordingly, in the barrier panel 200 of the stereoscopic image display device according to an exemplary embodiment of the present invention, the channel electrode in the second transmission regions T2 without changing the position and shape of the channel electrodes CH1-CHn. The formation of the light blocking region by the fields CH1-CHn can be prevented. That is, the shape of the channel electrodes CH1-CHn may be simplified in the barrier panel 200 of the stereoscopic image display device according to the exemplary embodiment of the present invention. Accordingly, process efficiency may be improved in the barrier panel 200 of the stereoscopic image display device according to the exemplary embodiment of the present invention.

As a result, in the stereoscopic image display device according to the exemplary embodiment of the present invention, each unit pixel PA of the display panel 100 includes an emission area EA and a first transmission area T1, and the barrier panel 200 It includes barrier regions BA overlapping the light emitting region EA of each unit pixel PA and second transmission regions T2 overlapping the first transmission region T1 of each unit pixel PA. However, the second transmission regions T2 of the barrier panel 200 may overlap the lower common electrode layer 218 positioned between the channel electrodes CH1-CHn and the barrier liquid crystal layer 230. Accordingly, in the stereoscopic image display device according to the exemplary embodiment of the present invention, the channel electrodes CH1- in the second transmission regions T2 are not changed without changing the position and/or shape of the channel electrodes CH1-CHn. The formation of the light blocking region by CHn) can be prevented. Therefore, in the stereoscopic image display device according to an embodiment of the present invention, process efficiency and transparency may be improved without deteriorating the quality of the stereoscopic image provided to the user.

The stereoscopic image display device according to an embodiment of the present invention may further include a first linear polarizer 710, a second linear polarizer 720, and a quarter wave plate 800. The barrier panel 200 may be positioned between the first linear polarizer 710 and the second linear polarizer 720. The quarter wave plate 800 may be positioned between the display panel 100 and the first linear polarizing plate 710. For example, the quarter wave plate 800 and the first linear polarizing plate 710 may be sequentially stacked on the display panel 100. Accordingly, reflection of external light may be prevented in the stereoscopic image display device according to the exemplary embodiment of the present invention. Therefore, in the stereoscopic image display device according to the exemplary embodiment of the present invention, the quality of the stereoscopic image provided to the user may be improved.

The stereoscopic image display device according to an exemplary embodiment of the present invention includes a light emitting area EA and a first transmission area T1 in which each unit pixel PA of the display panel 100 is positioned side by side in the first direction Y. Is explained. However, as illustrated in FIG. 8, in the stereoscopic image display device according to another exemplary embodiment of the present invention, each unit pixel PA of the display panel 100 has a second direction X perpendicular to the first direction Y It may include a light emitting region (EA) and the first transmission region (T1) located side by side. In the stereoscopic image display device according to another embodiment of the present invention, the barrier regions BA and the second transmission regions T2 of the barrier panel 200 may be positioned side by side in the first direction Y, respectively. That is, in the stereoscopic image display device according to another embodiment of the present invention, the barrier panel 200 may include barrier regions BA and second transmission regions T2 alternately positioned in the second direction X. Can. Accordingly, in the stereoscopic image display device according to another embodiment of the present invention, the lower common electrode layer may extend in the second direction (X). For example, in the stereoscopic image display device according to another embodiment of the present invention, the lower common electrode layer may overlap with some channel electrodes. Accordingly, in the stereoscopic image display device according to another exemplary embodiment of the present invention, regardless of the relative positions of the light emitting area EA and the first transmission area T1 positioned in each unit pixel PA of the display panel 100, Process efficiency and transparency can be improved.

In the stereoscopic image display device according to the exemplary embodiment of the present invention, it is described that the light emitting element 140 is positioned in the light emitting area EA of each unit pixel PA. However, in the stereoscopic image display device according to another embodiment of the present invention, the display area DA and the light through which the unit pixels PA of the display panel 100 embody an image by using the light supplied from the outside pass as it is. It may include a first transmission region (T1). For example, as illustrated in FIG. 9, the stereoscopic image display device according to another embodiment of the present invention may include a backlight unit 900 that supplies light to the display panel 100. The display panel 100 may be positioned between the backlight unit 900 and the barrier panel 200. For example, the display panel 100 of the stereoscopic image display device according to another embodiment of the present invention may be a liquid crystal panel. The display panel 100 may be positioned between the first linear polarizer 710 and the second linear polarizer 720. A third linear polarizing plate 730 may be positioned on the outer surface of the barrier panel 200.

The backlight unit 900 may have a structure through which external light passes. For example, in the backlight unit 900, the light source 910 is located on one side of the light guide plate 920, and the optical member 930 is positioned on the light guide plate 920 facing the display panel 100. It may be an edge type backlight unit.

The barrier areas BA of the barrier panel 200 may overlap the display area DA of each unit pixel PA. The second transmission regions T2 of the barrier panel 200 may overlap the first transmission region T1 of each unit pixel PA. The barrier panel 200 may include a lower common electrode layer overlapping the first transmission region T1 of the display panel 100. Accordingly, in the stereoscopic image display device according to another embodiment of the present invention, regardless of the type of the display panel 100, the quality of the stereoscopic image provided to the user is maintained and transparency can be improved.

In the display device according to another embodiment of the present invention, it is described that the display panel 100 is positioned between the backlight unit 900 and the barrier panel 200. However, as illustrated in FIG. 10, in the display device according to another embodiment of the present invention, the barrier panel 200 may be positioned between the backlight unit 900 and the display panel 100. A first linear polarizing plate 710 may be positioned between the backlight unit 900 and the barrier panel 200. A second linear polarizer 720 may be positioned between the barrier panel 200 and the display panel 100. A third linear polarizing plate 730 may be attached to the outer surface of the display panel 100. Accordingly, the transparency of the display device according to another embodiment of the present invention may be improved regardless of the relative positions of the display panel 100 and the barrier panel 200.

100: display panel 200: barrier panel
210: lower barrier substrate 218: lower common electrode layer
220: upper barrier substrate 222: upper common electrode layer
230: barrier liquid crystal layer CH1-CHn: channel electrode
BL1-BLn: lower link

Claims (9)

A display panel in which each unit pixel includes a display area and a first transmission area; And
And a barrier panel positioned on the display panel,
The barrier panel includes a barrier region overlapping a display region of each unit pixel and second transmission regions overlapping a first transmission region of each unit pixel. According to claim 1,
Each second transmission region has the same size as the first transmission region of each unit pixel,
Each barrier region is a stereoscopic image display device having the same size as the display region of each unit pixel. According to claim 1,
The barrier panel includes channel electrodes, a lower insulating layer, a lower common electrode layer, a barrier liquid crystal layer, and an upper common electrode layer sequentially stacked between the lower barrier substrate and the upper barrier substrate,
The lower common electrode layer overlaps the second transmission regions. The method of claim 3,
The upper common electrode layer overlaps the barrier regions and the second transmission regions. The method of claim 3,
The display area and the first transmission area of each unit pixel are positioned side by side in the first direction,
Each channel electrode is a stereoscopic image display device traversing the barrier regions and the second transmission regions positioned in the first direction. The method of claim 5,
Each lower common electrode layer extends in a second direction perpendicular to the first direction,
The second transmission regions overlap the crossing regions of the lower common electrode layer and the channel electrodes. The method of claim 6,
The horizontal image length of each lower common electrode layer in the first direction is the same as the horizontal length of each second transmission area in the first direction. The method of claim 6,
The barrier panel further includes a common voltage supply wiring extending along the edge of the lower barrier panel,
Each lower common electrode layer is connected to the common voltage supply wiring outside the active region in which the barrier regions and the second transmission regions are located. According to claim 1,
The display panel is a stereoscopic image display device including light emitting elements positioned in a display area of each unit pixel.

Images